<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
</head>
<body>
  
</body>
<script>
  // var obj ={
  //     myname:'zd',
  //     is:'ok',
  //     zzh:'zjh'
  // }
  // var obj1 = new Object()

  var datas = new Date()

  Date.prototype.ADC='vN'
  var datas1 = new Date()

  console.log(datas1.ADC)
  // Object.prototype.ceshi =123
  // Object.prototype.say1 = function(){
  //   console.log('我是zzh')
  // }

  // function Obj3(a,b,c){
  //   this.uname = a
  //   this.age = b
  //   this.id = c
  // }
  // Obj3.prototype.say = function(){
  //   console.log('我是zzh')
  // }

  // var myObj = new Obj3('wjn','30','007')

  // console.log(myObj.say)

</script>
</html>